Anchor-free Oriented Proposal Generator for Object Detection. (arXiv:2110.01931v2 [cs.CV] UPDATED)

Oriented object detection is a practical and challenging task in remote
sensing image interpretation. Nowadays, oriented detectors mostly use
horizontal boxes as intermedium to derive oriented boxes from them. However,
the horizontal boxes are inclined to get small Intersection-over-Unions (IoUs)
with ground truths, which may have some undesirable effects, such as
introducing redundant noise, mismatching with ground truths, detracting from
the robustness of detectors, etc. In this paper, we propose a novel Anchor-free
Oriented Proposal Generator (AOPG) that abandons horizontal …

anchor arxiv cv detection free generator